./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2150081979 <...> Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts. execve("./syz-executor2150081979", ["./syz-executor2150081979"], 0x7fffcf622010 /* 10 vars */) = 0 brk(NULL) = 0x55556329c000 brk(0x55556329cd00) = 0x55556329cd00 arch_prctl(ARCH_SET_FS, 0x55556329c380) = 0 set_tid_address(0x55556329c650) = 5832 set_robust_list(0x55556329c660, 24) = 0 rseq(0x55556329cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2150081979", 4096) = 28 getrandom("\x46\x33\xf5\xcd\xe2\xb3\xbd\x73", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556329cd00 brk(0x5555632bdd00) = 0x5555632bdd00 brk(0x5555632be000) = 0x5555632be000 mprotect(0x7f09e4217000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0 [ 88.697348][ T5832] cgroup: Unknown subsys name 'net' umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0 chmod("/syzcgroup/net", 0777) = 0 mkdir("/syzcgroup/cpu", 0777) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) [ 88.883317][ T5832] cgroup: Unknown subsys name 'cpuset' [ 88.908425][ T5832] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) mkdir("./syzkaller.r4D3Ur", 0700) = 0 chmod("./syzkaller.r4D3Ur", 0777) = 0 chdir("./syzkaller.r4D3Ur") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached [pid 5833] set_robust_list(0x55556329c660, 24 [pid 5832] <... clone resumed>, child_tidptr=0x55556329c650) = 5833 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] getppid() = 0 [pid 5833] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5833] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5833] unshare(CLONE_NEWNS) = 0 [pid 5833] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5833] unshare(CLONE_NEWIPC) = 0 [pid 5833] unshare(CLONE_NEWCGROUP) = 0 [pid 5833] unshare(CLONE_NEWUTS) = 0 [pid 5833] unshare(CLONE_SYSVSEM) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "16777216", 8) = 8 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "536870912", 9) = 9 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "8192", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024", 4) = 4 [pid 5833] close(3) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5833] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5833] close(3) = 0 [pid 5833] getpid() = 1 [pid 5833] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5837] set_robust_list(0x55556329c660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55556329c650) = 2 [pid 5837] <... set_robust_list resumed>) = 0 [pid 5837] chdir("./0") = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5837] setpgid(0, 0) = 0 [pid 5837] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5837] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5837] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1000", 4) = 4 [pid 5837] close(3) = 0 [pid 5837] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5837] write(1, "executing program\n", 18) = 18 [pid 5837] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5837] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [ 90.086981][ T5837] [ 90.089639][ T5837] ============================= [ 90.094619][ T5837] WARNING: suspicious RCU usage [ 90.099535][ T5837] 6.14.0-rc2-next-20250217-syzkaller #0 Not tainted [ 90.106617][ T5837] ----------------------------- [ 90.111502][ T5837] fs/kernfs/mount.c:243 suspicious rcu_dereference_check() usage! [ 90.119379][ T5837] [ 90.119379][ T5837] other info that might help us debug this: [ 90.119379][ T5837] [ 90.129708][ T5837] [ 90.129708][ T5837] rcu_scheduler_active = 2, debug_locks = 1 [ 90.138584][ T5837] 3 locks held by syz-executor215/5837: [ 90.144293][ T5837] #0: ffff88802ab0b870 (&fc->uapi_mutex){+.+.}-{4:4}, at: __se_sys_fsconfig+0x9b2/0xf60 [ 90.154252][ T5837] #1: ffff8880355560e0 (&type->s_umount_key#46){+.+.}-{4:4}, at: super_lock+0x196/0x400 [ 90.164174][ T5837] #2: ffff88801bef7148 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_node_dentry+0xc3/0x2d0 [ 90.174564][ T5837] [ 90.174564][ T5837] stack backtrace: [ 90.180473][ T5837] CPU: 0 UID: 0 PID: 5837 Comm: syz-executor215 Not tainted 6.14.0-rc2-next-20250217-syzkaller #0 [ 90.180491][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 90.180501][ T5837] Call Trace: [ 90.180509][ T5837] [ 90.180514][ T5837] dump_stack_lvl+0x241/0x360 [ 90.180533][ T5837] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.180544][ T5837] ? __pfx__printk+0x10/0x10 [ 90.180552][ T5837] ? do_raw_spin_lock+0x14f/0x370 [ 90.180578][ T5837] lockdep_rcu_suspicious+0x226/0x340 [ 90.180592][ T5837] kernfs_node_dentry+0x24b/0x2d0 [ 90.180609][ T5837] cgroup_do_get_tree+0x248/0x390 [ 90.180626][ T5837] cgroup_get_tree+0xbb/0x230 [ 90.180641][ T5837] vfs_get_tree+0x90/0x2b0 [ 90.180657][ T5837] vfs_cmd_create+0xa0/0x1f0 [ 90.180670][ T5837] ? __se_sys_fsconfig+0xa29/0xf60 [ 90.180689][ T5837] __se_sys_fsconfig+0xa33/0xf60 [ 90.180708][ T5837] ? __pfx___se_sys_fsconfig+0x10/0x10 [ 90.180723][ T5837] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 90.180739][ T5837] ? lockdep_hardirqs_on+0x99/0x150 [ 90.180757][ T5837] ? __x64_sys_fsconfig+0x20/0xc0 [ 90.180770][ T5837] do_syscall_64+0xf3/0x230 [ 90.180783][ T5837] ? clear_bhb_loop+0x45/0xa0 [ 90.180800][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.180813][ T5837] RIP: 0033:0x7f09e41a2de9 [ 90.180827][ T5837] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 90.180835][ T5837] RSP: 002b:00007ffe4f61eba8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af [ 90.180845][ T5837] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f09e41a2de9 [ 90.180852][ T5837] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 [ 90.180857][ T5837] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 90.180862][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09e41ec036 [ 90.180867][ T5837] R13: 00007ffe4f61ebe0 R14: 00007ffe4f61ec20 R15: 0000000000000000 [ 90.180888][ T5837] [ 90.181514][ T5837] [ 90.383126][ T5837] ============================================ [ 90.389254][ T5837] WARNING: possible recursive locking detected [ 90.395405][ T5837] 6.14.0-rc2-next-20250217-syzkaller #0 Not tainted [ 90.401998][ T5837] -------------------------------------------- [ 90.408148][ T5837] syz-executor215/5837 is trying to acquire lock: [ 90.414557][ T5837] ffff88801bef7148 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0xa2/0x5d0 [ 90.424594][ T5837] [ 90.424594][ T5837] but task is already holding lock: [ 90.431947][ T5837] ffff88801bef7148 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_node_dentry+0xc3/0x2d0 [ 90.441682][ T5837] [ 90.441682][ T5837] other info that might help us debug this: [ 90.449720][ T5837] Possible unsafe locking scenario: [ 90.449720][ T5837] [ 90.457151][ T5837] CPU0 [ 90.460412][ T5837] ---- [ 90.463679][ T5837] lock(&root->kernfs_rwsem); [ 90.468443][ T5837] lock(&root->kernfs_rwsem); [ 90.473209][ T5837] [ 90.473209][ T5837] *** DEADLOCK *** [ 90.473209][ T5837] [ 90.481585][ T5837] May be due to missing lock nesting notation [ 90.481585][ T5837] [ 90.489927][ T5837] 3 locks held by syz-executor215/5837: [ 90.495464][ T5837] #0: ffff88802ab0b870 (&fc->uapi_mutex){+.+.}-{4:4}, at: __se_sys_fsconfig+0x9b2/0xf60 [ 90.505381][ T5837] #1: ffff8880355560e0 (&type->s_umount_key#46){+.+.}-{4:4}, at: super_lock+0x196/0x400 [ 90.515315][ T5837] #2: ffff88801bef7148 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_node_dentry+0xc3/0x2d0 [ 90.525764][ T5837] [ 90.525764][ T5837] stack backtrace: [ 90.531729][ T5837] CPU: 1 UID: 0 PID: 5837 Comm: syz-executor215 Not tainted 6.14.0-rc2-next-20250217-syzkaller #0 [ 90.531741][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 90.531747][ T5837] Call Trace: [ 90.531753][ T5837] [ 90.531758][ T5837] dump_stack_lvl+0x241/0x360 [ 90.531773][ T5837] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.531782][ T5837] ? __pfx__printk+0x10/0x10 [ 90.531791][ T5837] ? lockdep_unlock+0x16a/0x300 [ 90.531807][ T5837] print_deadlock_bug+0x483/0x620 [ 90.531819][ T5837] validate_chain+0x15e2/0x5920 [ 90.531834][ T5837] ? validate_chain+0x15c0/0x5920 [ 90.531844][ T5837] ? __pfx_validate_chain+0x10/0x10 [ 90.531859][ T5837] ? __pfx_validate_chain+0x10/0x10 [ 90.531868][ T5837] ? __lock_acquire+0x1397/0x2100 [ 90.531881][ T5837] ? __pfx_validate_chain+0x10/0x10 [ 90.531893][ T5837] ? mark_lock+0x9a/0x360 [ 90.531902][ T5837] __lock_acquire+0x1397/0x2100 [ 90.531919][ T5837] lock_acquire+0x1ed/0x550 [ 90.531932][ T5837] ? kernfs_dop_revalidate+0xa2/0x5d0 [ 90.531944][ T5837] ? __pfx_lock_acquire+0x10/0x10 [ 90.531957][ T5837] ? __pfx___might_resched+0x10/0x10 [ 90.531973][ T5837] down_read+0xb1/0xa40 [ 90.531985][ T5837] ? kernfs_dop_revalidate+0xa2/0x5d0 [ 90.531995][ T5837] ? __pfx_lock_acquire+0x10/0x10 [ 90.532007][ T5837] ? kernfs_root+0x1c/0x230 [ 90.532015][ T5837] ? __pfx_down_read+0x10/0x10 [ 90.532029][ T5837] ? kernfs_root+0x1c/0x230 [ 90.532037][ T5837] kernfs_dop_revalidate+0xa2/0x5d0 [ 90.532048][ T5837] lookup_one_unlocked+0x23b/0x2d0 [ 90.532059][ T5837] ? __pfx_lookup_one_unlocked+0x10/0x10 [ 90.532068][ T5837] ? preempt_schedule_notrace_thunk+0x16/0x30 [ 90.532082][ T5837] ? nbcon_cpu_emergency_exit+0x6e/0xd0 [ 90.532090][ T5837] ? nbcon_cpu_emergency_exit+0x77/0xd0 [ 90.532100][ T5837] lookup_positive_unlocked+0x2b/0xb0 [ 90.532110][ T5837] kernfs_node_dentry+0x139/0x2d0 [ 90.532123][ T5837] cgroup_do_get_tree+0x248/0x390 [ 90.532135][ T5837] cgroup_get_tree+0xbb/0x230 [ 90.532148][ T5837] vfs_get_tree+0x90/0x2b0 [ 90.532160][ T5837] vfs_cmd_create+0xa0/0x1f0 [ 90.532171][ T5837] ? __se_sys_fsconfig+0xa29/0xf60 [ 90.532181][ T5837] __se_sys_fsconfig+0xa33/0xf60 [ 90.532193][ T5837] ? __pfx___se_sys_fsconfig+0x10/0x10 [ 90.532204][ T5837] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 90.532218][ T5837] ? lockdep_hardirqs_on+0x99/0x150 [ 90.532228][ T5837] ? __x64_sys_fsconfig+0x20/0xc0 [ 90.532238][ T5837] do_syscall_64+0xf3/0x230 [ 90.532253][ T5837] ? clear_bhb_loop+0x45/0xa0 [ 90.532267][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.532280][ T5837] RIP: 0033:0x7f09e41a2de9 [ 90.532289][ T5837] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 90.532296][ T5837] RSP: 002b:00007ffe4f61eba8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af [ 90.532306][ T5837] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f09e41a2de9 [ 90.532313][ T5837] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 [ 90.532318][ T5837] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [pid 5837] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5837] close(3) = 0 [pid 5837] close(4) = -1 EBADF (Bad file descriptor) [pid 5837] close(5) = -1 EBADF (Bad file descriptor) [pid 5837] close(6) = -1 EBADF (Bad file descriptor) [pid 5837] close(7) = -1 EBADF (Bad file descriptor) [pid 5837] close(8) = -1 EBADF (Bad file descriptor) [pid 5837] close(9) = -1 EBADF (Bad file descriptor) [pid 5837] close(10) = -1 EBADF (Bad file descriptor) [pid 5837] close(11) = -1 EBADF (Bad file descriptor) [pid 5837] close(12) = -1 EBADF (Bad file descriptor) [pid 5837] close(13) = -1 EBADF (Bad file descriptor) [pid 5837] close(14) = -1 EBADF (Bad file descriptor) [pid 5837] close(15) = -1 EBADF (Bad file descriptor) [pid 5837] close(16) = -1 EBADF (Bad file descriptor) [pid 5837] close(17) = -1 EBADF (Bad file descriptor) [pid 5837] close(18) = -1 EBADF (Bad file descriptor) [pid 5837] close(19) = -1 EBADF (Bad file descriptor) [pid 5837] close(20) = -1 EBADF (Bad file descriptor) [pid 5837] close(21) = -1 EBADF (Bad file descriptor) [pid 5837] close(22) = -1 EBADF (Bad file descriptor) [pid 5837] close(23) = -1 EBADF (Bad file descriptor) [pid 5837] close(24) = -1 EBADF (Bad file descriptor) [pid 5837] close(25) = -1 EBADF (Bad file descriptor) [pid 5837] close(26) = -1 EBADF (Bad file descriptor) [pid 5837] close(27) = -1 EBADF (Bad file descriptor) [pid 5837] close(28) = -1 EBADF (Bad file descriptor) [pid 5837] close(29) = -1 EBADF (Bad file descriptor) [pid 5837] exit_group(0) = ? [pid 5837] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [ 90.532323][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09e41ec036 [ 90.532329][ T5837] R13: 00007ffe4f61ebe0 R14: 00007ffe4f61ec20 R15: 0000000000000000 [ 90.532338][ T5837] [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/binderfs") = 0 [pid 5833] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/cgroup.net") = 0 [pid 5833] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/cgroup.cpu") = 0 [pid 5833] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./0") = 0 [pid 5833] mkdir("./1", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached , child_tidptr=0x55556329c650) = 3 [pid 5838] set_robust_list(0x55556329c660, 24) = 0 [pid 5838] chdir("./1") = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] setpgid(0, 0) = 0 [pid 5838] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5838] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5838] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1000", 4) = 4 [pid 5838] close(3) = 0 [pid 5838] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5838] write(1, "executing program\n", 18) = 18 [pid 5838] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5838] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5838] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5838] close(3) = 0 [pid 5838] close(4) = -1 EBADF (Bad file descriptor) [pid 5838] close(5) = -1 EBADF (Bad file descriptor) [pid 5838] close(6) = -1 EBADF (Bad file descriptor) [pid 5838] close(7) = -1 EBADF (Bad file descriptor) [pid 5838] close(8) = -1 EBADF (Bad file descriptor) [pid 5838] close(9) = -1 EBADF (Bad file descriptor) [pid 5838] close(10) = -1 EBADF (Bad file descriptor) [pid 5838] close(11) = -1 EBADF (Bad file descriptor) [pid 5838] close(12) = -1 EBADF (Bad file descriptor) [pid 5838] close(13) = -1 EBADF (Bad file descriptor) [pid 5838] close(14) = -1 EBADF (Bad file descriptor) [pid 5838] close(15) = -1 EBADF (Bad file descriptor) [pid 5838] close(16) = -1 EBADF (Bad file descriptor) [pid 5838] close(17) = -1 EBADF (Bad file descriptor) [pid 5838] close(18) = -1 EBADF (Bad file descriptor) [pid 5838] close(19) = -1 EBADF (Bad file descriptor) [pid 5838] close(20) = -1 EBADF (Bad file descriptor) [pid 5838] close(21) = -1 EBADF (Bad file descriptor) [pid 5838] close(22) = -1 EBADF (Bad file descriptor) [pid 5838] close(23) = -1 EBADF (Bad file descriptor) [pid 5838] close(24) = -1 EBADF (Bad file descriptor) [pid 5838] close(25) = -1 EBADF (Bad file descriptor) [pid 5838] close(26) = -1 EBADF (Bad file descriptor) [pid 5838] close(27) = -1 EBADF (Bad file descriptor) [pid 5838] close(28) = -1 EBADF (Bad file descriptor) [pid 5838] close(29) = -1 EBADF (Bad file descriptor) [pid 5838] exit_group(0) = ? [pid 5838] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./1/binderfs") = 0 [pid 5833] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./1/cgroup.net") = 0 [pid 5833] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./1/cgroup.cpu") = 0 [pid 5833] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./1/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./1") = 0 [pid 5833] mkdir("./2", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556329c650) = 4 ./strace-static-x86_64: Process 5839 attached [pid 5839] set_robust_list(0x55556329c660, 24) = 0 [pid 5839] chdir("./2") = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] setpgid(0, 0) = 0 [pid 5839] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5839] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5839] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5839] write(1, "executing program\n", 18executing program ) = 18 [pid 5839] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5839] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5839] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5839] close(3) = 0 [pid 5839] close(4) = -1 EBADF (Bad file descriptor) [pid 5839] close(5) = -1 EBADF (Bad file descriptor) [pid 5839] close(6) = -1 EBADF (Bad file descriptor) [pid 5839] close(7) = -1 EBADF (Bad file descriptor) [pid 5839] close(8) = -1 EBADF (Bad file descriptor) [pid 5839] close(9) = -1 EBADF (Bad file descriptor) [pid 5839] close(10) = -1 EBADF (Bad file descriptor) [pid 5839] close(11) = -1 EBADF (Bad file descriptor) [pid 5839] close(12) = -1 EBADF (Bad file descriptor) [pid 5839] close(13) = -1 EBADF (Bad file descriptor) [pid 5839] close(14) = -1 EBADF (Bad file descriptor) [pid 5839] close(15) = -1 EBADF (Bad file descriptor) [pid 5839] close(16) = -1 EBADF (Bad file descriptor) [pid 5839] close(17) = -1 EBADF (Bad file descriptor) [pid 5839] close(18) = -1 EBADF (Bad file descriptor) [pid 5839] close(19) = -1 EBADF (Bad file descriptor) [pid 5839] close(20) = -1 EBADF (Bad file descriptor) [pid 5839] close(21) = -1 EBADF (Bad file descriptor) [pid 5839] close(22) = -1 EBADF (Bad file descriptor) [pid 5839] close(23) = -1 EBADF (Bad file descriptor) [pid 5839] close(24) = -1 EBADF (Bad file descriptor) [pid 5839] close(25) = -1 EBADF (Bad file descriptor) [pid 5839] close(26) = -1 EBADF (Bad file descriptor) [pid 5839] close(27) = -1 EBADF (Bad file descriptor) [pid 5839] close(28) = -1 EBADF (Bad file descriptor) [pid 5839] close(29) = -1 EBADF (Bad file descriptor) [pid 5839] exit_group(0) = ? [pid 5839] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./2/binderfs") = 0 [pid 5833] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./2/cgroup.net") = 0 [pid 5833] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./2/cgroup.cpu") = 0 [pid 5833] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./2/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./2") = 0 [pid 5833] mkdir("./3", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached , child_tidptr=0x55556329c650) = 5 [pid 5840] set_robust_list(0x55556329c660, 24) = 0 [pid 5840] chdir("./3") = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5840] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5840] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5840] write(1, "executing program\n", 18) = 18 [pid 5840] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5840] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5840] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5840] close(3) = 0 [pid 5840] close(4) = -1 EBADF (Bad file descriptor) [pid 5840] close(5) = -1 EBADF (Bad file descriptor) [pid 5840] close(6) = -1 EBADF (Bad file descriptor) [pid 5840] close(7) = -1 EBADF (Bad file descriptor) [pid 5840] close(8) = -1 EBADF (Bad file descriptor) [pid 5840] close(9) = -1 EBADF (Bad file descriptor) [pid 5840] close(10) = -1 EBADF (Bad file descriptor) [pid 5840] close(11) = -1 EBADF (Bad file descriptor) [pid 5840] close(12) = -1 EBADF (Bad file descriptor) [pid 5840] close(13) = -1 EBADF (Bad file descriptor) [pid 5840] close(14) = -1 EBADF (Bad file descriptor) [pid 5840] close(15) = -1 EBADF (Bad file descriptor) [pid 5840] close(16) = -1 EBADF (Bad file descriptor) [pid 5840] close(17) = -1 EBADF (Bad file descriptor) [pid 5840] close(18) = -1 EBADF (Bad file descriptor) [pid 5840] close(19) = -1 EBADF (Bad file descriptor) [pid 5840] close(20) = -1 EBADF (Bad file descriptor) [pid 5840] close(21) = -1 EBADF (Bad file descriptor) [pid 5840] close(22) = -1 EBADF (Bad file descriptor) [pid 5840] close(23) = -1 EBADF (Bad file descriptor) [pid 5840] close(24) = -1 EBADF (Bad file descriptor) [pid 5840] close(25) = -1 EBADF (Bad file descriptor) [pid 5840] close(26) = -1 EBADF (Bad file descriptor) [pid 5840] close(27) = -1 EBADF (Bad file descriptor) [pid 5840] close(28) = -1 EBADF (Bad file descriptor) [pid 5840] close(29) = -1 EBADF (Bad file descriptor) [pid 5840] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./3/binderfs") = 0 [pid 5833] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./3/cgroup.net") = 0 [pid 5833] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./3/cgroup.cpu") = 0 [pid 5833] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./3/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./3") = 0 [pid 5833] mkdir("./4", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x55556329c650) = 6 [pid 5841] set_robust_list(0x55556329c660, 24) = 0 [pid 5841] chdir("./4") = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5841] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5841] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5841] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5841] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5841] close(3) = 0 [pid 5841] close(4) = -1 EBADF (Bad file descriptor) [pid 5841] close(5) = -1 EBADF (Bad file descriptor) [pid 5841] close(6) = -1 EBADF (Bad file descriptor) [pid 5841] close(7) = -1 EBADF (Bad file descriptor) [pid 5841] close(8) = -1 EBADF (Bad file descriptor) [pid 5841] close(9) = -1 EBADF (Bad file descriptor) [pid 5841] close(10) = -1 EBADF (Bad file descriptor) [pid 5841] close(11) = -1 EBADF (Bad file descriptor) [pid 5841] close(12) = -1 EBADF (Bad file descriptor) [pid 5841] close(13) = -1 EBADF (Bad file descriptor) [pid 5841] close(14) = -1 EBADF (Bad file descriptor) [pid 5841] close(15) = -1 EBADF (Bad file descriptor) [pid 5841] close(16) = -1 EBADF (Bad file descriptor) [pid 5841] close(17) = -1 EBADF (Bad file descriptor) [pid 5841] close(18) = -1 EBADF (Bad file descriptor) [pid 5841] close(19) = -1 EBADF (Bad file descriptor) [pid 5841] close(20) = -1 EBADF (Bad file descriptor) [pid 5841] close(21) = -1 EBADF (Bad file descriptor) [pid 5841] close(22) = -1 EBADF (Bad file descriptor) [pid 5841] close(23) = -1 EBADF (Bad file descriptor) [pid 5841] close(24) = -1 EBADF (Bad file descriptor) [pid 5841] close(25) = -1 EBADF (Bad file descriptor) [pid 5841] close(26) = -1 EBADF (Bad file descriptor) [pid 5841] close(27) = -1 EBADF (Bad file descriptor) [pid 5841] close(28) = -1 EBADF (Bad file descriptor) [pid 5841] close(29) = -1 EBADF (Bad file descriptor) [pid 5841] exit_group(0) = ? [pid 5841] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./4/binderfs") = 0 [pid 5833] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./4/cgroup.net") = 0 [pid 5833] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./4/cgroup.cpu") = 0 [pid 5833] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./4/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./4") = 0 [pid 5833] mkdir("./5", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached , child_tidptr=0x55556329c650) = 7 [pid 5842] set_robust_list(0x55556329c660, 24) = 0 [pid 5842] chdir("./5") = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5842] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5842] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 [pid 5842] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5842] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5842] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5842] close(3) = 0 [pid 5842] close(4) = -1 EBADF (Bad file descriptor) [pid 5842] close(5) = -1 EBADF (Bad file descriptor) [pid 5842] close(6) = -1 EBADF (Bad file descriptor) [pid 5842] close(7) = -1 EBADF (Bad file descriptor) [pid 5842] close(8) = -1 EBADF (Bad file descriptor) [pid 5842] close(9) = -1 EBADF (Bad file descriptor) [pid 5842] close(10) = -1 EBADF (Bad file descriptor) [pid 5842] close(11) = -1 EBADF (Bad file descriptor) [pid 5842] close(12) = -1 EBADF (Bad file descriptor) [pid 5842] close(13) = -1 EBADF (Bad file descriptor) [pid 5842] close(14) = -1 EBADF (Bad file descriptor) [pid 5842] close(15) = -1 EBADF (Bad file descriptor) [pid 5842] close(16) = -1 EBADF (Bad file descriptor) [pid 5842] close(17) = -1 EBADF (Bad file descriptor) [pid 5842] close(18) = -1 EBADF (Bad file descriptor) [pid 5842] close(19) = -1 EBADF (Bad file descriptor) [pid 5842] close(20) = -1 EBADF (Bad file descriptor) [pid 5842] close(21) = -1 EBADF (Bad file descriptor) [pid 5842] close(22) = -1 EBADF (Bad file descriptor) [pid 5842] close(23) = -1 EBADF (Bad file descriptor) [pid 5842] close(24) = -1 EBADF (Bad file descriptor) [pid 5842] close(25) = -1 EBADF (Bad file descriptor) [pid 5842] close(26) = -1 EBADF (Bad file descriptor) [pid 5842] close(27) = -1 EBADF (Bad file descriptor) [pid 5842] close(28) = -1 EBADF (Bad file descriptor) [pid 5842] close(29) = -1 EBADF (Bad file descriptor) [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./5/binderfs") = 0 [pid 5833] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./5/cgroup.net") = 0 [pid 5833] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./5/cgroup.cpu") = 0 [pid 5833] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./5/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./5") = 0 [pid 5833] mkdir("./6", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached , child_tidptr=0x55556329c650) = 8 [pid 5843] set_robust_list(0x55556329c660, 24) = 0 [pid 5843] chdir("./6") = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [ 92.423991][ T9] cfg80211: failed to load regulatory.db [pid 5843] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5843] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5843] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 [pid 5843] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5843] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5843] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5843] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5843] close(3) = 0 [pid 5843] close(4) = -1 EBADF (Bad file descriptor) [pid 5843] close(5) = -1 EBADF (Bad file descriptor) [pid 5843] close(6) = -1 EBADF (Bad file descriptor) [pid 5843] close(7) = -1 EBADF (Bad file descriptor) [pid 5843] close(8) = -1 EBADF (Bad file descriptor) [pid 5843] close(9) = -1 EBADF (Bad file descriptor) [pid 5843] close(10) = -1 EBADF (Bad file descriptor) [pid 5843] close(11) = -1 EBADF (Bad file descriptor) [pid 5843] close(12) = -1 EBADF (Bad file descriptor) [pid 5843] close(13) = -1 EBADF (Bad file descriptor) [pid 5843] close(14) = -1 EBADF (Bad file descriptor) [pid 5843] close(15) = -1 EBADF (Bad file descriptor) [pid 5843] close(16) = -1 EBADF (Bad file descriptor) [pid 5843] close(17) = -1 EBADF (Bad file descriptor) [pid 5843] close(18) = -1 EBADF (Bad file descriptor) [pid 5843] close(19) = -1 EBADF (Bad file descriptor) [pid 5843] close(20) = -1 EBADF (Bad file descriptor) [pid 5843] close(21) = -1 EBADF (Bad file descriptor) [pid 5843] close(22) = -1 EBADF (Bad file descriptor) [pid 5843] close(23) = -1 EBADF (Bad file descriptor) [pid 5843] close(24) = -1 EBADF (Bad file descriptor) [pid 5843] close(25) = -1 EBADF (Bad file descriptor) [pid 5843] close(26) = -1 EBADF (Bad file descriptor) [pid 5843] close(27) = -1 EBADF (Bad file descriptor) [pid 5843] close(28) = -1 EBADF (Bad file descriptor) [pid 5843] close(29) = -1 EBADF (Bad file descriptor) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./6/binderfs") = 0 [pid 5833] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./6/cgroup.net") = 0 [pid 5833] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./6/cgroup.cpu") = 0 [pid 5833] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./6/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./6") = 0 [pid 5833] mkdir("./7", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached , child_tidptr=0x55556329c650) = 9 [pid 5844] set_robust_list(0x55556329c660, 24) = 0 [pid 5844] chdir("./7") = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] setpgid(0, 0) = 0 [pid 5844] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5844] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5844] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5844] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5844] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5844] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5844] close(3) = 0 [pid 5844] close(4) = -1 EBADF (Bad file descriptor) [pid 5844] close(5) = -1 EBADF (Bad file descriptor) [pid 5844] close(6) = -1 EBADF (Bad file descriptor) [pid 5844] close(7) = -1 EBADF (Bad file descriptor) [pid 5844] close(8) = -1 EBADF (Bad file descriptor) [pid 5844] close(9) = -1 EBADF (Bad file descriptor) [pid 5844] close(10) = -1 EBADF (Bad file descriptor) [pid 5844] close(11) = -1 EBADF (Bad file descriptor) [pid 5844] close(12) = -1 EBADF (Bad file descriptor) [pid 5844] close(13) = -1 EBADF (Bad file descriptor) [pid 5844] close(14) = -1 EBADF (Bad file descriptor) [pid 5844] close(15) = -1 EBADF (Bad file descriptor) [pid 5844] close(16) = -1 EBADF (Bad file descriptor) [pid 5844] close(17) = -1 EBADF (Bad file descriptor) [pid 5844] close(18) = -1 EBADF (Bad file descriptor) [pid 5844] close(19) = -1 EBADF (Bad file descriptor) [pid 5844] close(20) = -1 EBADF (Bad file descriptor) [pid 5844] close(21) = -1 EBADF (Bad file descriptor) [pid 5844] close(22) = -1 EBADF (Bad file descriptor) [pid 5844] close(23) = -1 EBADF (Bad file descriptor) [pid 5844] close(24) = -1 EBADF (Bad file descriptor) [pid 5844] close(25) = -1 EBADF (Bad file descriptor) [pid 5844] close(26) = -1 EBADF (Bad file descriptor) [pid 5844] close(27) = -1 EBADF (Bad file descriptor) [pid 5844] close(28) = -1 EBADF (Bad file descriptor) [pid 5844] close(29) = -1 EBADF (Bad file descriptor) [pid 5844] exit_group(0) = ? [pid 5844] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./7/binderfs") = 0 [pid 5833] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./7/cgroup.net") = 0 [pid 5833] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./7/cgroup.cpu") = 0 [pid 5833] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./7/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./7") = 0 [pid 5833] mkdir("./8", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached [pid 5845] set_robust_list(0x55556329c660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55556329c650) = 10 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5845] chdir("./8") = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] setpgid(0, 0) = 0 [pid 5845] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5845] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5845] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3) = 0 [pid 5845] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5845] write(1, "executing program\n", 18) = 18 [pid 5845] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5845] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5845] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5845] close(3) = 0 [pid 5845] close(4) = -1 EBADF (Bad file descriptor) [pid 5845] close(5) = -1 EBADF (Bad file descriptor) [pid 5845] close(6) = -1 EBADF (Bad file descriptor) [pid 5845] close(7) = -1 EBADF (Bad file descriptor) [pid 5845] close(8) = -1 EBADF (Bad file descriptor) [pid 5845] close(9) = -1 EBADF (Bad file descriptor) [pid 5845] close(10) = -1 EBADF (Bad file descriptor) [pid 5845] close(11) = -1 EBADF (Bad file descriptor) [pid 5845] close(12) = -1 EBADF (Bad file descriptor) [pid 5845] close(13) = -1 EBADF (Bad file descriptor) [pid 5845] close(14) = -1 EBADF (Bad file descriptor) [pid 5845] close(15) = -1 EBADF (Bad file descriptor) [pid 5845] close(16) = -1 EBADF (Bad file descriptor) [pid 5845] close(17) = -1 EBADF (Bad file descriptor) [pid 5845] close(18) = -1 EBADF (Bad file descriptor) [pid 5845] close(19) = -1 EBADF (Bad file descriptor) [pid 5845] close(20) = -1 EBADF (Bad file descriptor) [pid 5845] close(21) = -1 EBADF (Bad file descriptor) [pid 5845] close(22) = -1 EBADF (Bad file descriptor) [pid 5845] close(23) = -1 EBADF (Bad file descriptor) [pid 5845] close(24) = -1 EBADF (Bad file descriptor) [pid 5845] close(25) = -1 EBADF (Bad file descriptor) [pid 5845] close(26) = -1 EBADF (Bad file descriptor) [pid 5845] close(27) = -1 EBADF (Bad file descriptor) [pid 5845] close(28) = -1 EBADF (Bad file descriptor) [pid 5845] close(29) = -1 EBADF (Bad file descriptor) [pid 5845] exit_group(0) = ? [pid 5845] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./8/binderfs") = 0 [pid 5833] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./8/cgroup.net") = 0 [pid 5833] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./8/cgroup.cpu") = 0 [pid 5833] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./8/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./8") = 0 [pid 5833] mkdir("./9", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5846 attached , child_tidptr=0x55556329c650) = 11 [pid 5846] set_robust_list(0x55556329c660, 24) = 0 [pid 5846] chdir("./9") = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5846] setpgid(0, 0) = 0 [pid 5846] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5846] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5846] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5846] write(3, "1000", 4) = 4 [pid 5846] close(3) = 0 [pid 5846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5846] write(1, "executing program\n", 18executing program ) = 18 [pid 5846] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5846] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5846] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5846] close(3) = 0 [pid 5846] close(4) = -1 EBADF (Bad file descriptor) [pid 5846] close(5) = -1 EBADF (Bad file descriptor) [pid 5846] close(6) = -1 EBADF (Bad file descriptor) [pid 5846] close(7) = -1 EBADF (Bad file descriptor) [pid 5846] close(8) = -1 EBADF (Bad file descriptor) [pid 5846] close(9) = -1 EBADF (Bad file descriptor) [pid 5846] close(10) = -1 EBADF (Bad file descriptor) [pid 5846] close(11) = -1 EBADF (Bad file descriptor) [pid 5846] close(12) = -1 EBADF (Bad file descriptor) [pid 5846] close(13) = -1 EBADF (Bad file descriptor) [pid 5846] close(14) = -1 EBADF (Bad file descriptor) [pid 5846] close(15) = -1 EBADF (Bad file descriptor) [pid 5846] close(16) = -1 EBADF (Bad file descriptor) [pid 5846] close(17) = -1 EBADF (Bad file descriptor) [pid 5846] close(18) = -1 EBADF (Bad file descriptor) [pid 5846] close(19) = -1 EBADF (Bad file descriptor) [pid 5846] close(20) = -1 EBADF (Bad file descriptor) [pid 5846] close(21) = -1 EBADF (Bad file descriptor) [pid 5846] close(22) = -1 EBADF (Bad file descriptor) [pid 5846] close(23) = -1 EBADF (Bad file descriptor) [pid 5846] close(24) = -1 EBADF (Bad file descriptor) [pid 5846] close(25) = -1 EBADF (Bad file descriptor) [pid 5846] close(26) = -1 EBADF (Bad file descriptor) [pid 5846] close(27) = -1 EBADF (Bad file descriptor) [pid 5846] close(28) = -1 EBADF (Bad file descriptor) [pid 5846] close(29) = -1 EBADF (Bad file descriptor) [pid 5846] exit_group(0) = ? [pid 5846] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./9/binderfs") = 0 [pid 5833] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./9/cgroup.net") = 0 [pid 5833] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./9/cgroup.cpu") = 0 [pid 5833] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./9/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./9") = 0 [pid 5833] mkdir("./10", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556329c650) = 12 ./strace-static-x86_64: Process 5847 attached [pid 5847] set_robust_list(0x55556329c660, 24) = 0 [pid 5847] chdir("./10") = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5847] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5847] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5847] write(1, "executing program\n", 18) = 18 [pid 5847] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5847] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5847] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5847] close(3) = 0 [pid 5847] close(4) = -1 EBADF (Bad file descriptor) [pid 5847] close(5) = -1 EBADF (Bad file descriptor) [pid 5847] close(6) = -1 EBADF (Bad file descriptor) [pid 5847] close(7) = -1 EBADF (Bad file descriptor) [pid 5847] close(8) = -1 EBADF (Bad file descriptor) [pid 5847] close(9) = -1 EBADF (Bad file descriptor) [pid 5847] close(10) = -1 EBADF (Bad file descriptor) [pid 5847] close(11) = -1 EBADF (Bad file descriptor) [pid 5847] close(12) = -1 EBADF (Bad file descriptor) [pid 5847] close(13) = -1 EBADF (Bad file descriptor) [pid 5847] close(14) = -1 EBADF (Bad file descriptor) [pid 5847] close(15) = -1 EBADF (Bad file descriptor) [pid 5847] close(16) = -1 EBADF (Bad file descriptor) [pid 5847] close(17) = -1 EBADF (Bad file descriptor) [pid 5847] close(18) = -1 EBADF (Bad file descriptor) [pid 5847] close(19) = -1 EBADF (Bad file descriptor) [pid 5847] close(20) = -1 EBADF (Bad file descriptor) [pid 5847] close(21) = -1 EBADF (Bad file descriptor) [pid 5847] close(22) = -1 EBADF (Bad file descriptor) [pid 5847] close(23) = -1 EBADF (Bad file descriptor) [pid 5847] close(24) = -1 EBADF (Bad file descriptor) [pid 5847] close(25) = -1 EBADF (Bad file descriptor) [pid 5847] close(26) = -1 EBADF (Bad file descriptor) [pid 5847] close(27) = -1 EBADF (Bad file descriptor) [pid 5847] close(28) = -1 EBADF (Bad file descriptor) [pid 5847] close(29) = -1 EBADF (Bad file descriptor) [pid 5847] exit_group(0) = ? [pid 5847] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./10/binderfs") = 0 [pid 5833] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./10/cgroup.net") = 0 [pid 5833] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./10/cgroup.cpu") = 0 [pid 5833] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./10/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./10") = 0 [pid 5833] mkdir("./11", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5848 attached , child_tidptr=0x55556329c650) = 13 [pid 5848] set_robust_list(0x55556329c660, 24) = 0 [pid 5848] chdir("./11") = 0 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5848] setpgid(0, 0) = 0 [pid 5848] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5848] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5848] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5848] write(3, "1000", 4) = 4 [pid 5848] close(3) = 0 [pid 5848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5848] write(1, "executing program\n", 18executing program ) = 18 [pid 5848] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5848] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5848] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5848] close(3) = 0 [pid 5848] close(4) = -1 EBADF (Bad file descriptor) [pid 5848] close(5) = -1 EBADF (Bad file descriptor) [pid 5848] close(6) = -1 EBADF (Bad file descriptor) [pid 5848] close(7) = -1 EBADF (Bad file descriptor) [pid 5848] close(8) = -1 EBADF (Bad file descriptor) [pid 5848] close(9) = -1 EBADF (Bad file descriptor) [pid 5848] close(10) = -1 EBADF (Bad file descriptor) [pid 5848] close(11) = -1 EBADF (Bad file descriptor) [pid 5848] close(12) = -1 EBADF (Bad file descriptor) [pid 5848] close(13) = -1 EBADF (Bad file descriptor) [pid 5848] close(14) = -1 EBADF (Bad file descriptor) [pid 5848] close(15) = -1 EBADF (Bad file descriptor) [pid 5848] close(16) = -1 EBADF (Bad file descriptor) [pid 5848] close(17) = -1 EBADF (Bad file descriptor) [pid 5848] close(18) = -1 EBADF (Bad file descriptor) [pid 5848] close(19) = -1 EBADF (Bad file descriptor) [pid 5848] close(20) = -1 EBADF (Bad file descriptor) [pid 5848] close(21) = -1 EBADF (Bad file descriptor) [pid 5848] close(22) = -1 EBADF (Bad file descriptor) [pid 5848] close(23) = -1 EBADF (Bad file descriptor) [pid 5848] close(24) = -1 EBADF (Bad file descriptor) [pid 5848] close(25) = -1 EBADF (Bad file descriptor) [pid 5848] close(26) = -1 EBADF (Bad file descriptor) [pid 5848] close(27) = -1 EBADF (Bad file descriptor) [pid 5848] close(28) = -1 EBADF (Bad file descriptor) [pid 5848] close(29) = -1 EBADF (Bad file descriptor) [pid 5848] exit_group(0) = ? [pid 5848] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./11/binderfs") = 0 [pid 5833] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./11/cgroup.net") = 0 [pid 5833] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./11/cgroup.cpu") = 0 [pid 5833] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./11/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./11") = 0 [pid 5833] mkdir("./12", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached , child_tidptr=0x55556329c650) = 14 [pid 5849] set_robust_list(0x55556329c660, 24) = 0 [pid 5849] chdir("./12") = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0) = 0 [pid 5849] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5849] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5849] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5849] write(1, "executing program\n", 18executing program ) = 18 [pid 5849] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5849] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5849] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5849] close(3) = 0 [pid 5849] close(4) = -1 EBADF (Bad file descriptor) [pid 5849] close(5) = -1 EBADF (Bad file descriptor) [pid 5849] close(6) = -1 EBADF (Bad file descriptor) [pid 5849] close(7) = -1 EBADF (Bad file descriptor) [pid 5849] close(8) = -1 EBADF (Bad file descriptor) [pid 5849] close(9) = -1 EBADF (Bad file descriptor) [pid 5849] close(10) = -1 EBADF (Bad file descriptor) [pid 5849] close(11) = -1 EBADF (Bad file descriptor) [pid 5849] close(12) = -1 EBADF (Bad file descriptor) [pid 5849] close(13) = -1 EBADF (Bad file descriptor) [pid 5849] close(14) = -1 EBADF (Bad file descriptor) [pid 5849] close(15) = -1 EBADF (Bad file descriptor) [pid 5849] close(16) = -1 EBADF (Bad file descriptor) [pid 5849] close(17) = -1 EBADF (Bad file descriptor) [pid 5849] close(18) = -1 EBADF (Bad file descriptor) [pid 5849] close(19) = -1 EBADF (Bad file descriptor) [pid 5849] close(20) = -1 EBADF (Bad file descriptor) [pid 5849] close(21) = -1 EBADF (Bad file descriptor) [pid 5849] close(22) = -1 EBADF (Bad file descriptor) [pid 5849] close(23) = -1 EBADF (Bad file descriptor) [pid 5849] close(24) = -1 EBADF (Bad file descriptor) [pid 5849] close(25) = -1 EBADF (Bad file descriptor) [pid 5849] close(26) = -1 EBADF (Bad file descriptor) [pid 5849] close(27) = -1 EBADF (Bad file descriptor) [pid 5849] close(28) = -1 EBADF (Bad file descriptor) [pid 5849] close(29) = -1 EBADF (Bad file descriptor) [pid 5849] exit_group(0) = ? [pid 5849] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./12/binderfs") = 0 [pid 5833] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./12/cgroup.net") = 0 [pid 5833] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./12/cgroup.cpu") = 0 [pid 5833] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./12/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./12") = 0 [pid 5833] mkdir("./13", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5850 attached , child_tidptr=0x55556329c650) = 15 [pid 5850] set_robust_list(0x55556329c660, 24) = 0 [pid 5850] chdir("./13") = 0 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5850] setpgid(0, 0) = 0 [pid 5850] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5850] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5850] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1000", 4) = 4 [pid 5850] close(3) = 0 [pid 5850] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5850] write(1, "executing program\n", 18executing program ) = 18 [pid 5850] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5850] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5850] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5850] close(3) = 0 [pid 5850] close(4) = -1 EBADF (Bad file descriptor) [pid 5850] close(5) = -1 EBADF (Bad file descriptor) [pid 5850] close(6) = -1 EBADF (Bad file descriptor) [pid 5850] close(7) = -1 EBADF (Bad file descriptor) [pid 5850] close(8) = -1 EBADF (Bad file descriptor) [pid 5850] close(9) = -1 EBADF (Bad file descriptor) [pid 5850] close(10) = -1 EBADF (Bad file descriptor) [pid 5850] close(11) = -1 EBADF (Bad file descriptor) [pid 5850] close(12) = -1 EBADF (Bad file descriptor) [pid 5850] close(13) = -1 EBADF (Bad file descriptor) [pid 5850] close(14) = -1 EBADF (Bad file descriptor) [pid 5850] close(15) = -1 EBADF (Bad file descriptor) [pid 5850] close(16) = -1 EBADF (Bad file descriptor) [pid 5850] close(17) = -1 EBADF (Bad file descriptor) [pid 5850] close(18) = -1 EBADF (Bad file descriptor) [pid 5850] close(19) = -1 EBADF (Bad file descriptor) [pid 5850] close(20) = -1 EBADF (Bad file descriptor) [pid 5850] close(21) = -1 EBADF (Bad file descriptor) [pid 5850] close(22) = -1 EBADF (Bad file descriptor) [pid 5850] close(23) = -1 EBADF (Bad file descriptor) [pid 5850] close(24) = -1 EBADF (Bad file descriptor) [pid 5850] close(25) = -1 EBADF (Bad file descriptor) [pid 5850] close(26) = -1 EBADF (Bad file descriptor) [pid 5850] close(27) = -1 EBADF (Bad file descriptor) [pid 5850] close(28) = -1 EBADF (Bad file descriptor) [pid 5850] close(29) = -1 EBADF (Bad file descriptor) [pid 5850] exit_group(0) = ? [pid 5850] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./13/binderfs") = 0 [pid 5833] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./13/cgroup.net") = 0 [pid 5833] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./13/cgroup.cpu") = 0 [pid 5833] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./13/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./13") = 0 [pid 5833] mkdir("./14", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached [pid 5851] set_robust_list(0x55556329c660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55556329c650) = 16 [pid 5851] <... set_robust_list resumed>) = 0 [pid 5851] chdir("./14") = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5851] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5851] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5851] write(1, "executing program\n", 18executing program ) = 18 [pid 5851] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5851] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5851] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5851] close(3) = 0 [pid 5851] close(4) = -1 EBADF (Bad file descriptor) [pid 5851] close(5) = -1 EBADF (Bad file descriptor) [pid 5851] close(6) = -1 EBADF (Bad file descriptor) [pid 5851] close(7) = -1 EBADF (Bad file descriptor) [pid 5851] close(8) = -1 EBADF (Bad file descriptor) [pid 5851] close(9) = -1 EBADF (Bad file descriptor) [pid 5851] close(10) = -1 EBADF (Bad file descriptor) [pid 5851] close(11) = -1 EBADF (Bad file descriptor) [pid 5851] close(12) = -1 EBADF (Bad file descriptor) [pid 5851] close(13) = -1 EBADF (Bad file descriptor) [pid 5851] close(14) = -1 EBADF (Bad file descriptor) [pid 5851] close(15) = -1 EBADF (Bad file descriptor) [pid 5851] close(16) = -1 EBADF (Bad file descriptor) [pid 5851] close(17) = -1 EBADF (Bad file descriptor) [pid 5851] close(18) = -1 EBADF (Bad file descriptor) [pid 5851] close(19) = -1 EBADF (Bad file descriptor) [pid 5851] close(20) = -1 EBADF (Bad file descriptor) [pid 5851] close(21) = -1 EBADF (Bad file descriptor) [pid 5851] close(22) = -1 EBADF (Bad file descriptor) [pid 5851] close(23) = -1 EBADF (Bad file descriptor) [pid 5851] close(24) = -1 EBADF (Bad file descriptor) [pid 5851] close(25) = -1 EBADF (Bad file descriptor) [pid 5851] close(26) = -1 EBADF (Bad file descriptor) [pid 5851] close(27) = -1 EBADF (Bad file descriptor) [pid 5851] close(28) = -1 EBADF (Bad file descriptor) [pid 5851] close(29) = -1 EBADF (Bad file descriptor) [pid 5851] exit_group(0) = ? [pid 5851] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./14/binderfs") = 0 [pid 5833] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./14/cgroup.net") = 0 [pid 5833] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./14/cgroup.cpu") = 0 [pid 5833] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./14/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./14") = 0 [pid 5833] mkdir("./15", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5852 attached , child_tidptr=0x55556329c650) = 17 [pid 5852] set_robust_list(0x55556329c660, 24) = 0 [pid 5852] chdir("./15") = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5852] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5852] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5852] write(1, "executing program\n", 18executing program ) = 18 [pid 5852] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5852] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5852] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5852] close(3) = 0 [pid 5852] close(4) = -1 EBADF (Bad file descriptor) [pid 5852] close(5) = -1 EBADF (Bad file descriptor) [pid 5852] close(6) = -1 EBADF (Bad file descriptor) [pid 5852] close(7) = -1 EBADF (Bad file descriptor) [pid 5852] close(8) = -1 EBADF (Bad file descriptor) [pid 5852] close(9) = -1 EBADF (Bad file descriptor) [pid 5852] close(10) = -1 EBADF (Bad file descriptor) [pid 5852] close(11) = -1 EBADF (Bad file descriptor) [pid 5852] close(12) = -1 EBADF (Bad file descriptor) [pid 5852] close(13) = -1 EBADF (Bad file descriptor) [pid 5852] close(14) = -1 EBADF (Bad file descriptor) [pid 5852] close(15) = -1 EBADF (Bad file descriptor) [pid 5852] close(16) = -1 EBADF (Bad file descriptor) [pid 5852] close(17) = -1 EBADF (Bad file descriptor) [pid 5852] close(18) = -1 EBADF (Bad file descriptor) [pid 5852] close(19) = -1 EBADF (Bad file descriptor) [pid 5852] close(20) = -1 EBADF (Bad file descriptor) [pid 5852] close(21) = -1 EBADF (Bad file descriptor) [pid 5852] close(22) = -1 EBADF (Bad file descriptor) [pid 5852] close(23) = -1 EBADF (Bad file descriptor) [pid 5852] close(24) = -1 EBADF (Bad file descriptor) [pid 5852] close(25) = -1 EBADF (Bad file descriptor) [pid 5852] close(26) = -1 EBADF (Bad file descriptor) [pid 5852] close(27) = -1 EBADF (Bad file descriptor) [pid 5852] close(28) = -1 EBADF (Bad file descriptor) [pid 5852] close(29) = -1 EBADF (Bad file descriptor) [pid 5852] exit_group(0) = ? [pid 5852] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./15/binderfs") = 0 [pid 5833] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./15/cgroup.net") = 0 [pid 5833] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./15/cgroup.cpu") = 0 [pid 5833] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./15/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./15") = 0 [pid 5833] mkdir("./16", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached , child_tidptr=0x55556329c650) = 18 [pid 5853] set_robust_list(0x55556329c660, 24) = 0 [pid 5853] chdir("./16") = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5853] setpgid(0, 0) = 0 [pid 5853] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5853] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5853] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5853] write(3, "1000", 4) = 4 [pid 5853] close(3) = 0 [pid 5853] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5853] write(1, "executing program\n", 18executing program ) = 18 [pid 5853] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5853] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5853] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5853] close(3) = 0 [pid 5853] close(4) = -1 EBADF (Bad file descriptor) [pid 5853] close(5) = -1 EBADF (Bad file descriptor) [pid 5853] close(6) = -1 EBADF (Bad file descriptor) [pid 5853] close(7) = -1 EBADF (Bad file descriptor) [pid 5853] close(8) = -1 EBADF (Bad file descriptor) [pid 5853] close(9) = -1 EBADF (Bad file descriptor) [pid 5853] close(10) = -1 EBADF (Bad file descriptor) [pid 5853] close(11) = -1 EBADF (Bad file descriptor) [pid 5853] close(12) = -1 EBADF (Bad file descriptor) [pid 5853] close(13) = -1 EBADF (Bad file descriptor) [pid 5853] close(14) = -1 EBADF (Bad file descriptor) [pid 5853] close(15) = -1 EBADF (Bad file descriptor) [pid 5853] close(16) = -1 EBADF (Bad file descriptor) [pid 5853] close(17) = -1 EBADF (Bad file descriptor) [pid 5853] close(18) = -1 EBADF (Bad file descriptor) [pid 5853] close(19) = -1 EBADF (Bad file descriptor) [pid 5853] close(20) = -1 EBADF (Bad file descriptor) [pid 5853] close(21) = -1 EBADF (Bad file descriptor) [pid 5853] close(22) = -1 EBADF (Bad file descriptor) [pid 5853] close(23) = -1 EBADF (Bad file descriptor) [pid 5853] close(24) = -1 EBADF (Bad file descriptor) [pid 5853] close(25) = -1 EBADF (Bad file descriptor) [pid 5853] close(26) = -1 EBADF (Bad file descriptor) [pid 5853] close(27) = -1 EBADF (Bad file descriptor) [pid 5853] close(28) = -1 EBADF (Bad file descriptor) [pid 5853] close(29) = -1 EBADF (Bad file descriptor) [pid 5853] exit_group(0) = ? [pid 5853] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./16/binderfs") = 0 [pid 5833] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./16/cgroup.net") = 0 [pid 5833] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./16/cgroup.cpu") = 0 [pid 5833] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./16/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./16") = 0 [pid 5833] mkdir("./17", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached , child_tidptr=0x55556329c650) = 19 [pid 5855] set_robust_list(0x55556329c660, 24) = 0 [pid 5855] chdir("./17") = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5855] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5855] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 [pid 5855] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5855] write(1, "executing program\n", 18) = 18 [pid 5855] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5855] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5855] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5855] close(3) = 0 [pid 5855] close(4) = -1 EBADF (Bad file descriptor) [pid 5855] close(5) = -1 EBADF (Bad file descriptor) [pid 5855] close(6) = -1 EBADF (Bad file descriptor) [pid 5855] close(7) = -1 EBADF (Bad file descriptor) [pid 5855] close(8) = -1 EBADF (Bad file descriptor) [pid 5855] close(9) = -1 EBADF (Bad file descriptor) [pid 5855] close(10) = -1 EBADF (Bad file descriptor) [pid 5855] close(11) = -1 EBADF (Bad file descriptor) [pid 5855] close(12) = -1 EBADF (Bad file descriptor) [pid 5855] close(13) = -1 EBADF (Bad file descriptor) [pid 5855] close(14) = -1 EBADF (Bad file descriptor) [pid 5855] close(15) = -1 EBADF (Bad file descriptor) [pid 5855] close(16) = -1 EBADF (Bad file descriptor) [pid 5855] close(17) = -1 EBADF (Bad file descriptor) [pid 5855] close(18) = -1 EBADF (Bad file descriptor) [pid 5855] close(19) = -1 EBADF (Bad file descriptor) [pid 5855] close(20) = -1 EBADF (Bad file descriptor) [pid 5855] close(21) = -1 EBADF (Bad file descriptor) [pid 5855] close(22) = -1 EBADF (Bad file descriptor) [pid 5855] close(23) = -1 EBADF (Bad file descriptor) [pid 5855] close(24) = -1 EBADF (Bad file descriptor) [pid 5855] close(25) = -1 EBADF (Bad file descriptor) [pid 5855] close(26) = -1 EBADF (Bad file descriptor) [pid 5855] close(27) = -1 EBADF (Bad file descriptor) [pid 5855] close(28) = -1 EBADF (Bad file descriptor) [pid 5855] close(29) = -1 EBADF (Bad file descriptor) [pid 5855] exit_group(0) = ? [pid 5855] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./17/binderfs") = 0 [pid 5833] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./17/cgroup.net") = 0 [pid 5833] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./17/cgroup.cpu") = 0 [pid 5833] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./17/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./17") = 0 [pid 5833] mkdir("./18", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5856 attached , child_tidptr=0x55556329c650) = 20 [pid 5856] set_robust_list(0x55556329c660, 24) = 0 [pid 5856] chdir("./18") = 0 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5856] setpgid(0, 0) = 0 [pid 5856] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5856] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5856] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1000", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5856] write(1, "executing program\n", 18) = 18 [pid 5856] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5856] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5856] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5856] close(3) = 0 [pid 5856] close(4) = -1 EBADF (Bad file descriptor) [pid 5856] close(5) = -1 EBADF (Bad file descriptor) [pid 5856] close(6) = -1 EBADF (Bad file descriptor) [pid 5856] close(7) = -1 EBADF (Bad file descriptor) [pid 5856] close(8) = -1 EBADF (Bad file descriptor) [pid 5856] close(9) = -1 EBADF (Bad file descriptor) [pid 5856] close(10) = -1 EBADF (Bad file descriptor) [pid 5856] close(11) = -1 EBADF (Bad file descriptor) [pid 5856] close(12) = -1 EBADF (Bad file descriptor) [pid 5856] close(13) = -1 EBADF (Bad file descriptor) [pid 5856] close(14) = -1 EBADF (Bad file descriptor) [pid 5856] close(15) = -1 EBADF (Bad file descriptor) [pid 5856] close(16) = -1 EBADF (Bad file descriptor) [pid 5856] close(17) = -1 EBADF (Bad file descriptor) [pid 5856] close(18) = -1 EBADF (Bad file descriptor) [pid 5856] close(19) = -1 EBADF (Bad file descriptor) [pid 5856] close(20) = -1 EBADF (Bad file descriptor) [pid 5856] close(21) = -1 EBADF (Bad file descriptor) [pid 5856] close(22) = -1 EBADF (Bad file descriptor) [pid 5856] close(23) = -1 EBADF (Bad file descriptor) [pid 5856] close(24) = -1 EBADF (Bad file descriptor) [pid 5856] close(25) = -1 EBADF (Bad file descriptor) [pid 5856] close(26) = -1 EBADF (Bad file descriptor) [pid 5856] close(27) = -1 EBADF (Bad file descriptor) [pid 5856] close(28) = -1 EBADF (Bad file descriptor) [pid 5856] close(29) = -1 EBADF (Bad file descriptor) [pid 5856] exit_group(0) = ? [pid 5856] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./18/binderfs") = 0 [pid 5833] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./18/cgroup.net") = 0 [pid 5833] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./18/cgroup.cpu") = 0 [pid 5833] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./18/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./18") = 0 [pid 5833] mkdir("./19", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5857 attached , child_tidptr=0x55556329c650) = 21 [pid 5857] set_robust_list(0x55556329c660, 24) = 0 [pid 5857] chdir("./19") = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5857] setpgid(0, 0) = 0 [pid 5857] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5857] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5857] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5857] write(3, "1000", 4) = 4 [pid 5857] close(3) = 0 [pid 5857] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5857] write(1, "executing program\n", 18) = 18 [pid 5857] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5857] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5857] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5857] close(3) = 0 [pid 5857] close(4) = -1 EBADF (Bad file descriptor) [pid 5857] close(5) = -1 EBADF (Bad file descriptor) [pid 5857] close(6) = -1 EBADF (Bad file descriptor) [pid 5857] close(7) = -1 EBADF (Bad file descriptor) [pid 5857] close(8) = -1 EBADF (Bad file descriptor) [pid 5857] close(9) = -1 EBADF (Bad file descriptor) [pid 5857] close(10) = -1 EBADF (Bad file descriptor) [pid 5857] close(11) = -1 EBADF (Bad file descriptor) [pid 5857] close(12) = -1 EBADF (Bad file descriptor) [pid 5857] close(13) = -1 EBADF (Bad file descriptor) [pid 5857] close(14) = -1 EBADF (Bad file descriptor) [pid 5857] close(15) = -1 EBADF (Bad file descriptor) [pid 5857] close(16) = -1 EBADF (Bad file descriptor) [pid 5857] close(17) = -1 EBADF (Bad file descriptor) [pid 5857] close(18) = -1 EBADF (Bad file descriptor) [pid 5857] close(19) = -1 EBADF (Bad file descriptor) [pid 5857] close(20) = -1 EBADF (Bad file descriptor) [pid 5857] close(21) = -1 EBADF (Bad file descriptor) [pid 5857] close(22) = -1 EBADF (Bad file descriptor) [pid 5857] close(23) = -1 EBADF (Bad file descriptor) [pid 5857] close(24) = -1 EBADF (Bad file descriptor) [pid 5857] close(25) = -1 EBADF (Bad file descriptor) [pid 5857] close(26) = -1 EBADF (Bad file descriptor) [pid 5857] close(27) = -1 EBADF (Bad file descriptor) [pid 5857] close(28) = -1 EBADF (Bad file descriptor) [pid 5857] close(29) = -1 EBADF (Bad file descriptor) [pid 5857] exit_group(0) = ? [pid 5857] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./19/binderfs") = 0 [pid 5833] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./19/cgroup.net") = 0 [pid 5833] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./19/cgroup.cpu") = 0 [pid 5833] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./19/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./19") = 0 [pid 5833] mkdir("./20", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5858 attached , child_tidptr=0x55556329c650) = 22 [pid 5858] set_robust_list(0x55556329c660, 24) = 0 [pid 5858] chdir("./20") = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5858] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5858] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 [pid 5858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5858] write(1, "executing program\n", 18executing program ) = 18 [pid 5858] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5858] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5858] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5858] close(3) = 0 [pid 5858] close(4) = -1 EBADF (Bad file descriptor) [pid 5858] close(5) = -1 EBADF (Bad file descriptor) [pid 5858] close(6) = -1 EBADF (Bad file descriptor) [pid 5858] close(7) = -1 EBADF (Bad file descriptor) [pid 5858] close(8) = -1 EBADF (Bad file descriptor) [pid 5858] close(9) = -1 EBADF (Bad file descriptor) [pid 5858] close(10) = -1 EBADF (Bad file descriptor) [pid 5858] close(11) = -1 EBADF (Bad file descriptor) [pid 5858] close(12) = -1 EBADF (Bad file descriptor) [pid 5858] close(13) = -1 EBADF (Bad file descriptor) [pid 5858] close(14) = -1 EBADF (Bad file descriptor) [pid 5858] close(15) = -1 EBADF (Bad file descriptor) [pid 5858] close(16) = -1 EBADF (Bad file descriptor) [pid 5858] close(17) = -1 EBADF (Bad file descriptor) [pid 5858] close(18) = -1 EBADF (Bad file descriptor) [pid 5858] close(19) = -1 EBADF (Bad file descriptor) [pid 5858] close(20) = -1 EBADF (Bad file descriptor) [pid 5858] close(21) = -1 EBADF (Bad file descriptor) [pid 5858] close(22) = -1 EBADF (Bad file descriptor) [pid 5858] close(23) = -1 EBADF (Bad file descriptor) [pid 5858] close(24) = -1 EBADF (Bad file descriptor) [pid 5858] close(25) = -1 EBADF (Bad file descriptor) [pid 5858] close(26) = -1 EBADF (Bad file descriptor) [pid 5858] close(27) = -1 EBADF (Bad file descriptor) [pid 5858] close(28) = -1 EBADF (Bad file descriptor) [pid 5858] close(29) = -1 EBADF (Bad file descriptor) [pid 5858] exit_group(0) = ? [pid 5858] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./20/binderfs") = 0 [pid 5833] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./20/cgroup.net") = 0 [pid 5833] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./20/cgroup.cpu") = 0 [pid 5833] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./20/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./20") = 0 [pid 5833] mkdir("./21", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached , child_tidptr=0x55556329c650) = 23 [pid 5859] set_robust_list(0x55556329c660, 24) = 0 [pid 5859] chdir("./21") = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5859] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5859] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5859] write(1, "executing program\n", 18executing program ) = 18 [pid 5859] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5859] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5859] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5859] close(3) = 0 [pid 5859] close(4) = -1 EBADF (Bad file descriptor) [pid 5859] close(5) = -1 EBADF (Bad file descriptor) [pid 5859] close(6) = -1 EBADF (Bad file descriptor) [pid 5859] close(7) = -1 EBADF (Bad file descriptor) [pid 5859] close(8) = -1 EBADF (Bad file descriptor) [pid 5859] close(9) = -1 EBADF (Bad file descriptor) [pid 5859] close(10) = -1 EBADF (Bad file descriptor) [pid 5859] close(11) = -1 EBADF (Bad file descriptor) [pid 5859] close(12) = -1 EBADF (Bad file descriptor) [pid 5859] close(13) = -1 EBADF (Bad file descriptor) [pid 5859] close(14) = -1 EBADF (Bad file descriptor) [pid 5859] close(15) = -1 EBADF (Bad file descriptor) [pid 5859] close(16) = -1 EBADF (Bad file descriptor) [pid 5859] close(17) = -1 EBADF (Bad file descriptor) [pid 5859] close(18) = -1 EBADF (Bad file descriptor) [pid 5859] close(19) = -1 EBADF (Bad file descriptor) [pid 5859] close(20) = -1 EBADF (Bad file descriptor) [pid 5859] close(21) = -1 EBADF (Bad file descriptor) [pid 5859] close(22) = -1 EBADF (Bad file descriptor) [pid 5859] close(23) = -1 EBADF (Bad file descriptor) [pid 5859] close(24) = -1 EBADF (Bad file descriptor) [pid 5859] close(25) = -1 EBADF (Bad file descriptor) [pid 5859] close(26) = -1 EBADF (Bad file descriptor) [pid 5859] close(27) = -1 EBADF (Bad file descriptor) [pid 5859] close(28) = -1 EBADF (Bad file descriptor) [pid 5859] close(29) = -1 EBADF (Bad file descriptor) [pid 5859] exit_group(0) = ? [pid 5859] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/binderfs") = 0 [pid 5833] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup.net") = 0 [pid 5833] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup.cpu") = 0 [pid 5833] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./21") = 0 [pid 5833] mkdir("./22", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5860 attached , child_tidptr=0x55556329c650) = 24 [pid 5860] set_robust_list(0x55556329c660, 24) = 0 [pid 5860] chdir("./22") = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5860] setpgid(0, 0) = 0 [pid 5860] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5860] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5860] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5860] write(3, "1000", 4) = 4 [pid 5860] close(3) = 0 [pid 5860] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5860] write(1, "executing program\n", 18executing program ) = 18 [pid 5860] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5860] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5860] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5860] close(3) = 0 [pid 5860] close(4) = -1 EBADF (Bad file descriptor) [pid 5860] close(5) = -1 EBADF (Bad file descriptor) [pid 5860] close(6) = -1 EBADF (Bad file descriptor) [pid 5860] close(7) = -1 EBADF (Bad file descriptor) [pid 5860] close(8) = -1 EBADF (Bad file descriptor) [pid 5860] close(9) = -1 EBADF (Bad file descriptor) [pid 5860] close(10) = -1 EBADF (Bad file descriptor) [pid 5860] close(11) = -1 EBADF (Bad file descriptor) [pid 5860] close(12) = -1 EBADF (Bad file descriptor) [pid 5860] close(13) = -1 EBADF (Bad file descriptor) [pid 5860] close(14) = -1 EBADF (Bad file descriptor) [pid 5860] close(15) = -1 EBADF (Bad file descriptor) [pid 5860] close(16) = -1 EBADF (Bad file descriptor) [pid 5860] close(17) = -1 EBADF (Bad file descriptor) [pid 5860] close(18) = -1 EBADF (Bad file descriptor) [pid 5860] close(19) = -1 EBADF (Bad file descriptor) [pid 5860] close(20) = -1 EBADF (Bad file descriptor) [pid 5860] close(21) = -1 EBADF (Bad file descriptor) [pid 5860] close(22) = -1 EBADF (Bad file descriptor) [pid 5860] close(23) = -1 EBADF (Bad file descriptor) [pid 5860] close(24) = -1 EBADF (Bad file descriptor) [pid 5860] close(25) = -1 EBADF (Bad file descriptor) [pid 5860] close(26) = -1 EBADF (Bad file descriptor) [pid 5860] close(27) = -1 EBADF (Bad file descriptor) [pid 5860] close(28) = -1 EBADF (Bad file descriptor) [pid 5860] close(29) = -1 EBADF (Bad file descriptor) [pid 5860] exit_group(0) = ? [pid 5860] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./22/binderfs") = 0 [pid 5833] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./22/cgroup.net") = 0 [pid 5833] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./22/cgroup.cpu") = 0 [pid 5833] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./22/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./22") = 0 [pid 5833] mkdir("./23", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached , child_tidptr=0x55556329c650) = 25 [pid 5861] set_robust_list(0x55556329c660, 24) = 0 [pid 5861] chdir("./23") = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5861] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5861] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 [pid 5861] close(3) = 0 [pid 5861] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5861] write(1, "executing program\n", 18) = 18 [pid 5861] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5861] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5861] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5861] close(3) = 0 [pid 5861] close(4) = -1 EBADF (Bad file descriptor) [pid 5861] close(5) = -1 EBADF (Bad file descriptor) [pid 5861] close(6) = -1 EBADF (Bad file descriptor) [pid 5861] close(7) = -1 EBADF (Bad file descriptor) [pid 5861] close(8) = -1 EBADF (Bad file descriptor) [pid 5861] close(9) = -1 EBADF (Bad file descriptor) [pid 5861] close(10) = -1 EBADF (Bad file descriptor) [pid 5861] close(11) = -1 EBADF (Bad file descriptor) [pid 5861] close(12) = -1 EBADF (Bad file descriptor) [pid 5861] close(13) = -1 EBADF (Bad file descriptor) [pid 5861] close(14) = -1 EBADF (Bad file descriptor) [pid 5861] close(15) = -1 EBADF (Bad file descriptor) [pid 5861] close(16) = -1 EBADF (Bad file descriptor) [pid 5861] close(17) = -1 EBADF (Bad file descriptor) [pid 5861] close(18) = -1 EBADF (Bad file descriptor) [pid 5861] close(19) = -1 EBADF (Bad file descriptor) [pid 5861] close(20) = -1 EBADF (Bad file descriptor) [pid 5861] close(21) = -1 EBADF (Bad file descriptor) [pid 5861] close(22) = -1 EBADF (Bad file descriptor) [pid 5861] close(23) = -1 EBADF (Bad file descriptor) [pid 5861] close(24) = -1 EBADF (Bad file descriptor) [pid 5861] close(25) = -1 EBADF (Bad file descriptor) [pid 5861] close(26) = -1 EBADF (Bad file descriptor) [pid 5861] close(27) = -1 EBADF (Bad file descriptor) [pid 5861] close(28) = -1 EBADF (Bad file descriptor) [pid 5861] close(29) = -1 EBADF (Bad file descriptor) [pid 5861] exit_group(0) = ? [pid 5861] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./23/binderfs") = 0 [pid 5833] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./23/cgroup.net") = 0 [pid 5833] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./23/cgroup.cpu") = 0 [pid 5833] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./23/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./23") = 0 [pid 5833] mkdir("./24", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5862 attached , child_tidptr=0x55556329c650) = 26 [pid 5862] set_robust_list(0x55556329c660, 24) = 0 [pid 5862] chdir("./24") = 0 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5862] setpgid(0, 0) = 0 [pid 5862] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5862] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5862] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5862] write(3, "1000", 4) = 4 [pid 5862] close(3) = 0 [pid 5862] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5862] write(1, "executing program\n", 18) = 18 [pid 5862] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5862] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5862] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5862] close(3) = 0 [pid 5862] close(4) = -1 EBADF (Bad file descriptor) [pid 5862] close(5) = -1 EBADF (Bad file descriptor) [pid 5862] close(6) = -1 EBADF (Bad file descriptor) [pid 5862] close(7) = -1 EBADF (Bad file descriptor) [pid 5862] close(8) = -1 EBADF (Bad file descriptor) [pid 5862] close(9) = -1 EBADF (Bad file descriptor) [pid 5862] close(10) = -1 EBADF (Bad file descriptor) [pid 5862] close(11) = -1 EBADF (Bad file descriptor) [pid 5862] close(12) = -1 EBADF (Bad file descriptor) [pid 5862] close(13) = -1 EBADF (Bad file descriptor) [pid 5862] close(14) = -1 EBADF (Bad file descriptor) [pid 5862] close(15) = -1 EBADF (Bad file descriptor) [pid 5862] close(16) = -1 EBADF (Bad file descriptor) [pid 5862] close(17) = -1 EBADF (Bad file descriptor) [pid 5862] close(18) = -1 EBADF (Bad file descriptor) [pid 5862] close(19) = -1 EBADF (Bad file descriptor) [pid 5862] close(20) = -1 EBADF (Bad file descriptor) [pid 5862] close(21) = -1 EBADF (Bad file descriptor) [pid 5862] close(22) = -1 EBADF (Bad file descriptor) [pid 5862] close(23) = -1 EBADF (Bad file descriptor) [pid 5862] close(24) = -1 EBADF (Bad file descriptor) [pid 5862] close(25) = -1 EBADF (Bad file descriptor) [pid 5862] close(26) = -1 EBADF (Bad file descriptor) [pid 5862] close(27) = -1 EBADF (Bad file descriptor) [pid 5862] close(28) = -1 EBADF (Bad file descriptor) [pid 5862] close(29) = -1 EBADF (Bad file descriptor) [pid 5862] exit_group(0) = ? [pid 5862] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./24/binderfs") = 0 [pid 5833] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./24/cgroup.net") = 0 [pid 5833] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./24/cgroup.cpu") = 0 [pid 5833] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./24/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./24") = 0 [pid 5833] mkdir("./25", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5863 attached , child_tidptr=0x55556329c650) = 27 [pid 5863] set_robust_list(0x55556329c660, 24) = 0 [pid 5863] chdir("./25") = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5863] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5863] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5863] write(3, "1000", 4) = 4 [pid 5863] close(3) = 0 [pid 5863] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5863] write(1, "executing program\n", 18executing program ) = 18 [pid 5863] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5863] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5863] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5863] close(3) = 0 [pid 5863] close(4) = -1 EBADF (Bad file descriptor) [pid 5863] close(5) = -1 EBADF (Bad file descriptor) [pid 5863] close(6) = -1 EBADF (Bad file descriptor) [pid 5863] close(7) = -1 EBADF (Bad file descriptor) [pid 5863] close(8) = -1 EBADF (Bad file descriptor) [pid 5863] close(9) = -1 EBADF (Bad file descriptor) [pid 5863] close(10) = -1 EBADF (Bad file descriptor) [pid 5863] close(11) = -1 EBADF (Bad file descriptor) [pid 5863] close(12) = -1 EBADF (Bad file descriptor) [pid 5863] close(13) = -1 EBADF (Bad file descriptor) [pid 5863] close(14) = -1 EBADF (Bad file descriptor) [pid 5863] close(15) = -1 EBADF (Bad file descriptor) [pid 5863] close(16) = -1 EBADF (Bad file descriptor) [pid 5863] close(17) = -1 EBADF (Bad file descriptor) [pid 5863] close(18) = -1 EBADF (Bad file descriptor) [pid 5863] close(19) = -1 EBADF (Bad file descriptor) [pid 5863] close(20) = -1 EBADF (Bad file descriptor) [pid 5863] close(21) = -1 EBADF (Bad file descriptor) [pid 5863] close(22) = -1 EBADF (Bad file descriptor) [pid 5863] close(23) = -1 EBADF (Bad file descriptor) [pid 5863] close(24) = -1 EBADF (Bad file descriptor) [pid 5863] close(25) = -1 EBADF (Bad file descriptor) [pid 5863] close(26) = -1 EBADF (Bad file descriptor) [pid 5863] close(27) = -1 EBADF (Bad file descriptor) [pid 5863] close(28) = -1 EBADF (Bad file descriptor) [pid 5863] close(29) = -1 EBADF (Bad file descriptor) [pid 5863] exit_group(0) = ? [pid 5863] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./25/binderfs") = 0 [pid 5833] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./25/cgroup.net") = 0 [pid 5833] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./25/cgroup.cpu") = 0 [pid 5833] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./25/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./25") = 0 [pid 5833] mkdir("./26", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5864 attached , child_tidptr=0x55556329c650) = 28 [pid 5864] set_robust_list(0x55556329c660, 24) = 0 [pid 5864] chdir("./26") = 0 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5864] setpgid(0, 0) = 0 [pid 5864] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5864] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5864] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5864] write(3, "1000", 4) = 4 [pid 5864] close(3) = 0 [pid 5864] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5864] write(1, "executing program\n", 18executing program ) = 18 [pid 5864] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5864] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5864] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5864] close(3) = 0 [pid 5864] close(4) = -1 EBADF (Bad file descriptor) [pid 5864] close(5) = -1 EBADF (Bad file descriptor) [pid 5864] close(6) = -1 EBADF (Bad file descriptor) [pid 5864] close(7) = -1 EBADF (Bad file descriptor) [pid 5864] close(8) = -1 EBADF (Bad file descriptor) [pid 5864] close(9) = -1 EBADF (Bad file descriptor) [pid 5864] close(10) = -1 EBADF (Bad file descriptor) [pid 5864] close(11) = -1 EBADF (Bad file descriptor) [pid 5864] close(12) = -1 EBADF (Bad file descriptor) [pid 5864] close(13) = -1 EBADF (Bad file descriptor) [pid 5864] close(14) = -1 EBADF (Bad file descriptor) [pid 5864] close(15) = -1 EBADF (Bad file descriptor) [pid 5864] close(16) = -1 EBADF (Bad file descriptor) [pid 5864] close(17) = -1 EBADF (Bad file descriptor) [pid 5864] close(18) = -1 EBADF (Bad file descriptor) [pid 5864] close(19) = -1 EBADF (Bad file descriptor) [pid 5864] close(20) = -1 EBADF (Bad file descriptor) [pid 5864] close(21) = -1 EBADF (Bad file descriptor) [pid 5864] close(22) = -1 EBADF (Bad file descriptor) [pid 5864] close(23) = -1 EBADF (Bad file descriptor) [pid 5864] close(24) = -1 EBADF (Bad file descriptor) [pid 5864] close(25) = -1 EBADF (Bad file descriptor) [pid 5864] close(26) = -1 EBADF (Bad file descriptor) [pid 5864] close(27) = -1 EBADF (Bad file descriptor) [pid 5864] close(28) = -1 EBADF (Bad file descriptor) [pid 5864] close(29) = -1 EBADF (Bad file descriptor) [pid 5864] exit_group(0) = ? [pid 5864] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./26/binderfs") = 0 [pid 5833] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./26/cgroup.net") = 0 [pid 5833] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./26/cgroup.cpu") = 0 [pid 5833] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./26/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./26") = 0 [pid 5833] mkdir("./27", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached , child_tidptr=0x55556329c650) = 29 [pid 5865] set_robust_list(0x55556329c660, 24) = 0 [pid 5865] chdir("./27") = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 [pid 5865] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5865] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5865] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5865] close(3) = 0 [pid 5865] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5865] write(1, "executing program\n", 18) = 18 [pid 5865] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5865] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5865] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5865] close(3) = 0 [pid 5865] close(4) = -1 EBADF (Bad file descriptor) [pid 5865] close(5) = -1 EBADF (Bad file descriptor) [pid 5865] close(6) = -1 EBADF (Bad file descriptor) [pid 5865] close(7) = -1 EBADF (Bad file descriptor) [pid 5865] close(8) = -1 EBADF (Bad file descriptor) [pid 5865] close(9) = -1 EBADF (Bad file descriptor) [pid 5865] close(10) = -1 EBADF (Bad file descriptor) [pid 5865] close(11) = -1 EBADF (Bad file descriptor) [pid 5865] close(12) = -1 EBADF (Bad file descriptor) [pid 5865] close(13) = -1 EBADF (Bad file descriptor) [pid 5865] close(14) = -1 EBADF (Bad file descriptor) [pid 5865] close(15) = -1 EBADF (Bad file descriptor) [pid 5865] close(16) = -1 EBADF (Bad file descriptor) [pid 5865] close(17) = -1 EBADF (Bad file descriptor) [pid 5865] close(18) = -1 EBADF (Bad file descriptor) [pid 5865] close(19) = -1 EBADF (Bad file descriptor) [pid 5865] close(20) = -1 EBADF (Bad file descriptor) [pid 5865] close(21) = -1 EBADF (Bad file descriptor) [pid 5865] close(22) = -1 EBADF (Bad file descriptor) [pid 5865] close(23) = -1 EBADF (Bad file descriptor) [pid 5865] close(24) = -1 EBADF (Bad file descriptor) [pid 5865] close(25) = -1 EBADF (Bad file descriptor) [pid 5865] close(26) = -1 EBADF (Bad file descriptor) [pid 5865] close(27) = -1 EBADF (Bad file descriptor) [pid 5865] close(28) = -1 EBADF (Bad file descriptor) [pid 5865] close(29) = -1 EBADF (Bad file descriptor) [pid 5865] exit_group(0) = ? [pid 5865] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./27/binderfs") = 0 [pid 5833] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./27/cgroup.net") = 0 [pid 5833] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./27/cgroup.cpu") = 0 [pid 5833] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./27/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./27") = 0 [pid 5833] mkdir("./28", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5867 attached , child_tidptr=0x55556329c650) = 30 [pid 5867] set_robust_list(0x55556329c660, 24) = 0 [pid 5867] chdir("./28") = 0 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5867] setpgid(0, 0) = 0 [pid 5867] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5867] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5867] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5867] write(3, "1000", 4) = 4 [pid 5867] close(3) = 0 [pid 5867] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5867] write(1, "executing program\n", 18) = 18 [pid 5867] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5867] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5867] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5867] close(3) = 0 [pid 5867] close(4) = -1 EBADF (Bad file descriptor) [pid 5867] close(5) = -1 EBADF (Bad file descriptor) [pid 5867] close(6) = -1 EBADF (Bad file descriptor) [pid 5867] close(7) = -1 EBADF (Bad file descriptor) [pid 5867] close(8) = -1 EBADF (Bad file descriptor) [pid 5867] close(9) = -1 EBADF (Bad file descriptor) [pid 5867] close(10) = -1 EBADF (Bad file descriptor) [pid 5867] close(11) = -1 EBADF (Bad file descriptor) [pid 5867] close(12) = -1 EBADF (Bad file descriptor) [pid 5867] close(13) = -1 EBADF (Bad file descriptor) [pid 5867] close(14) = -1 EBADF (Bad file descriptor) [pid 5867] close(15) = -1 EBADF (Bad file descriptor) [pid 5867] close(16) = -1 EBADF (Bad file descriptor) [pid 5867] close(17) = -1 EBADF (Bad file descriptor) [pid 5867] close(18) = -1 EBADF (Bad file descriptor) [pid 5867] close(19) = -1 EBADF (Bad file descriptor) [pid 5867] close(20) = -1 EBADF (Bad file descriptor) [pid 5867] close(21) = -1 EBADF (Bad file descriptor) [pid 5867] close(22) = -1 EBADF (Bad file descriptor) [pid 5867] close(23) = -1 EBADF (Bad file descriptor) [pid 5867] close(24) = -1 EBADF (Bad file descriptor) [pid 5867] close(25) = -1 EBADF (Bad file descriptor) [pid 5867] close(26) = -1 EBADF (Bad file descriptor) [pid 5867] close(27) = -1 EBADF (Bad file descriptor) [pid 5867] close(28) = -1 EBADF (Bad file descriptor) [pid 5867] close(29) = -1 EBADF (Bad file descriptor) [pid 5867] exit_group(0) = ? [pid 5867] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./28/binderfs") = 0 [pid 5833] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./28/cgroup.net") = 0 [pid 5833] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./28/cgroup.cpu") = 0 [pid 5833] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./28/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./28") = 0 [pid 5833] mkdir("./29", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5868 attached , child_tidptr=0x55556329c650) = 31 [pid 5868] set_robust_list(0x55556329c660, 24) = 0 [pid 5868] chdir("./29") = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] setpgid(0, 0) = 0 [pid 5868] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5868] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5868] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1000", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5868] write(1, "executing program\n", 18) = 18 [pid 5868] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5868] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5868] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5868] close(3) = 0 [pid 5868] close(4) = -1 EBADF (Bad file descriptor) [pid 5868] close(5) = -1 EBADF (Bad file descriptor) [pid 5868] close(6) = -1 EBADF (Bad file descriptor) [pid 5868] close(7) = -1 EBADF (Bad file descriptor) [pid 5868] close(8) = -1 EBADF (Bad file descriptor) [pid 5868] close(9) = -1 EBADF (Bad file descriptor) [pid 5868] close(10) = -1 EBADF (Bad file descriptor) [pid 5868] close(11) = -1 EBADF (Bad file descriptor) [pid 5868] close(12) = -1 EBADF (Bad file descriptor) [pid 5868] close(13) = -1 EBADF (Bad file descriptor) [pid 5868] close(14) = -1 EBADF (Bad file descriptor) [pid 5868] close(15) = -1 EBADF (Bad file descriptor) [pid 5868] close(16) = -1 EBADF (Bad file descriptor) [pid 5868] close(17) = -1 EBADF (Bad file descriptor) [pid 5868] close(18) = -1 EBADF (Bad file descriptor) [pid 5868] close(19) = -1 EBADF (Bad file descriptor) [pid 5868] close(20) = -1 EBADF (Bad file descriptor) [pid 5868] close(21) = -1 EBADF (Bad file descriptor) [pid 5868] close(22) = -1 EBADF (Bad file descriptor) [pid 5868] close(23) = -1 EBADF (Bad file descriptor) [pid 5868] close(24) = -1 EBADF (Bad file descriptor) [pid 5868] close(25) = -1 EBADF (Bad file descriptor) [pid 5868] close(26) = -1 EBADF (Bad file descriptor) [pid 5868] close(27) = -1 EBADF (Bad file descriptor) [pid 5868] close(28) = -1 EBADF (Bad file descriptor) [pid 5868] close(29) = -1 EBADF (Bad file descriptor) [pid 5868] exit_group(0) = ? [pid 5868] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./29/binderfs") = 0 [pid 5833] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./29/cgroup.net") = 0 [pid 5833] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./29/cgroup.cpu") = 0 [pid 5833] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./29/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./29") = 0 [pid 5833] mkdir("./30", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached , child_tidptr=0x55556329c650) = 32 [pid 5869] set_robust_list(0x55556329c660, 24) = 0 [pid 5869] chdir("./30") = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5869] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5869] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5869] write(3, "1000", 4) = 4 [pid 5869] close(3) = 0 [pid 5869] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5869] write(1, "executing program\n", 18executing program ) = 18 [pid 5869] unshare(CLONE_FS|CLONE_FILES|CLONE_SYSVSEM|CLONE_NEWCGROUP) = 0 [pid 5869] fsopen("cgroup2", FSOPEN_CLOEXEC) = 3 [pid 5869] fsconfig(3, FSCONFIG_CMD_CREATE, NULL, NULL, 0) = 0 [pid 5869] close(3) = 0 [pid 5869] close(4) = -1 EBADF (Bad file descriptor) [pid 5869] close(5) = -1 EBADF (Bad file descriptor) [pid 5869] close(6) = -1 EBADF (Bad file descriptor) [pid 5869] close(7) = -1 EBADF (Bad file descriptor) [pid 5869] close(8) = -1 EBADF (Bad file descriptor) [pid 5869] close(9) = -1 EBADF (Bad file descriptor) [pid 5869] close(10) = -1 EBADF (Bad file descriptor) [pid 5869] close(11) = -1 EBADF (Bad file descriptor) [pid 5869] close(12) = -1 EBADF (Bad file descriptor) [pid 5869] close(13) = -1 EBADF (Bad file descriptor) [pid 5869] close(14) = -1 EBADF (Bad file descriptor) [pid 5869] close(15) = -1 EBADF (Bad file descriptor) [pid 5869] close(16) = -1 EBADF (Bad file descriptor) [pid 5869] close(17) = -1 EBADF (Bad file descriptor) [pid 5869] close(18) = -1 EBADF (Bad file descriptor) [pid 5869] close(19) = -1 EBADF (Bad file descriptor) [pid 5869] close(20) = -1 EBADF (Bad file descriptor) [pid 5869] close(21) = -1 EBADF (Bad file descriptor) [pid 5869] close(22) = -1 EBADF (Bad file descriptor) [pid 5869] close(23) = -1 EBADF (Bad file descriptor) [pid 5869] close(24) = -1 EBADF (Bad file descriptor) [pid 5869] close(25) = -1 EBADF (Bad file descriptor) [pid 5869] close(26) = -1 EBADF (Bad file descriptor) [pid 5869] close(27) = -1 EBADF (Bad file descriptor) [pid 5869] close(28) = -1 EBADF (Bad file descriptor) [pid 5869] close(29) = -1 EBADF (Bad file descriptor) [pid 5869] exit_group(0) = ? [pid 5869] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5833] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 6 entries */, 32768) = 176 [pid 5833] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./30/binderfs") = 0 [pid 5833] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./30/cgroup.net") = 0 [pid 5833] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./30/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./30/cgroup.cpu") = 0 [pid 5833] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./30/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./30/cgroup") = 0 [pid 5833] getdents64(3, 0x55556329d6f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./30") = 0 [pid 5833] mkdir("./31", 0777) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5870 attached , child_tidptr=0x55556329c650) = 33 [pid 5870] set_robust_list(0x55556329c660, 24) = 0